Serampore Union Institution is a Bengali medium boys' school in Serampore, accredited as "A-Grade, Excellent Educational Institution" by West Bengal Council of Higher Secondary Education for its brilliant and enviable academic performance. The school was inaugurated by Ishwar Chandra Vidyasagar. The school is affiliated to the West Bengal Board of Secondary Education and the West Bengal Council of Higher Secondary Education. It was established in 1884. In 2009, the school celebrated its 125th anniversary.